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TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
Water overflow
1. Clogged drain.
from bottom of
door.
2. Machine not level.
3. Excessive inlet pressure.
4. Detergent foaming.
5. Wash/rinse arm end-cap missing.
6. Excessive fill time.
Wash motor
1. Loose or broken wires.
doesn't
operate on
2. Defective delime switch.
delime wash.
3. Defective motor starting relay.
Motor operates
1. Defective circuit in delime switch.
on delime
wash but not
2. Loose or broken wires.
on automatic.
No water comes
1. Water not turned on.
through the
arm when the
2. Defective solenoid valve.
"FILL" switch is
depressed.
Little or no
1. Limed-up rinse heads or piping.
water coming
through the rinse
2. Low water pressure.
assemblies.
Rinse water runs
1. Defective plunger in solenoid valve.
continuously
with breaker
2. Defective diaphragm in solenoid valve.
turned off.
COMMON PROBLEMS
REMEDY
1. Remove obstruction.
2. Level machine or increase height to the front.
3. Install pressure reducing valve or adjust if one is present.
Ensure flow meets data plate specification.
4. Reduce detergent quantity.
5. Replace.
6. Adjust timer fill time (see Initial Start-up section).
1. Reconnect or replace wires in motor.
2. Verify delime switch triggers input on PLC. If not, check
wiring/replace membrane.
3. Replace.
1. Replace switch.
2. Tighten and/or replace.
1. Turn water on.
2. Replace solenoid valve.
1. Delime rinse heads.
2. Increase pipe size to machine. Adjust pressure
regulator.
1. Replace.
2. Replace diaphragm.
16
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